A5061607067- Groundwater flow and contamination studies
- Hydraulic Fracturing and Reservoir Analysis
- Rock Mechanics and Modeling
- CO2 Sequestration and Geologic Interactions
- Soil and Unsaturated Flow
- Geophysical Methods and Applications
- Geophysical and Geoelectrical Methods
- Geotechnical Engineering and Soil Stabilization
- Dam Engineering and Safety
- Geotechnical Engineering and Soil Mechanics
- Enhanced Oil Recovery Techniques
- Geotechnical Engineering and Underground Structures
- Methane Hydrates and Related Phenomena
- Spacecraft and Cryogenic Technologies
- Geoscience and Mining Technology
- Geotechnical Engineering and Analysis
- Geothermal Energy Systems and Applications
- Planetary Science and Exploration
- Groundwater and Isotope Geochemistry
- Geophysics and Gravity Measurements
- Climate change and permafrost
Zhejiang University
2008-2024
City University of Macau
2023-2024
Hangzhou City University
2023-2024
City University
2024
Zhejiang Lab
2023
Repurposing groundwater-filled mine cavities for thermal energy storage has demonstrated promising potential to buffer the imbalance of supply and demand. Fractured formations are widespread in old mines due previous excavation activities, which dominates performance efficiency (MTES) system. Therefore, understanding mechanisms fluid flow, heat, solute transport fractured reservoirs MTES system is essential its application assessment environmental impact. In this study, a 3D fracture-matrix...
Gas transport in porous media has been widely investigated the geo-environmental, geotechnical, and chemical engineering fields. However, mechanism for transition of gas flow pattern under influence gravity field is not clear. This study gives some insights into this issue by using a hypergravity microfluidic experiment pore-scale simulations based on phase-field method. As centrifugal acceleration increases, undergoes gradual from continuous finger to discontinuous bubbly flow. An increase...
Hyper-gravity experiment enable the acceleration of long-term transport contaminants through fractured geological barriers. However, hyper-gravity effect solute in fractures are not well understood. In this study, sealed control apparatus and 3D printed fracture models were used to carry out 1 g N g experiments. The results show that breakthrough curves for experiments almost same. differences flow velocity fitted hydrodynamic dispersion coefficient 0.97–3.12% 9.09–20.4%, indicating...
The influence of contact area, caused by normal deformation, on fluid flow and solute transport through three-dimensional (3D) rock fractures is investigated. Fracture surfaces with different Hurst exponents (H) were generated numerically using the modified successive random addition (SRA) method. By applying deformations to fracture surface (Δu), a series models aperture distributions area ratios (c) simulated. results show that between two increases more void spaces are reduced as...
Abstract With the development of carbon dioxide geological storage, Ostwald ripening process in pores has attracted attention researchers due to its application storage stability problems. However, this is difficult reproduce accurately laboratory large mass transfer time scale. This article utilizes two theoretical models gravity‐induced analyze influence hypergravity field on process. It concluded that a decades‐long can be shortened 10 days if acceleration gravity increased by 1,000...
Decarbonizing the industrial and building heating cooling sectors is a crucial step toward achieving carbon neutrality, necessitating innovative sustainable solutions for over-seasonal storage of excess heat energy. With Germany alone having more than 10,000 old mines, repurposing these sites to implement controlled thermal energy strategy, known as mine-based (TES), has emerged potential solution. To effectively utilize such partially flooded artificial cavities, it fully understand...
Unsaturated soils are commonly found in coastal regions and marine sediments, where understanding the thermo-hydro-mechanical (THM) behavior, especially regarding phase transition, is crucial for related practical engineering applications. Centrifugal model offers an effective means to reflect prototype with smaller scale shorter duration under hypergravity conditions. Present studies on similarity based governing equation analysis of THM coupled responses mainly focused saturated rather...
Granite has relatively low-permeability and it been considered as one of favorable geological formation for final disposal high-level radioactive waste (HLW). However, the granite is often fractured characterized complex discrete fracture-matrix systems with considerable degree uncertainties in its physical geometrical properties. Prediction radionuclide migration at large spatial long temporal scales important safety assessment HLW disposal. In present study, a Monte Carlo Simulation (MCS)...
As a geological barrier for high-level radioactive waste (HLW) disposal in China, granite is crucial blocking nuclide migration into the biosphere. However, high uncertainty associated with 3D system, such as stochastic discrete fracture networks granite, significantly impedes practical safety assessments of HLW disposal. This study proposes Monte Carlo simulation (MCS)-based framework evaluating long-term performance fractured rocks. Statistical data on geometric parameters, on-site...
Obtaining a comprehensive understanding of solute transport in fractured rocks is crucial for various geoengineering applications, including waste disposal and construction geo-energy infrastructure. It was realized that controlled by stochastic discrete fracture-matrix systems. However, the impacts specific uncertainty caused fracture network structures on systems have yet not been fully understood. In this article, we aim to investigate influence structure The fluid flow are simulated...
If the settlement of bridgehead transition section expressway is too large, it often causes frequent vehicle jumping at and endangers passenger safety. The engineering practice has proved that lightweight embankment replacement technology can reduce postconstruction effectively, thus reducing occurrence jump. key filling design thickness selection time. This paper deduced how to determine time in practical engineering. In order apply more conveniently, this made following assumptions: (1)...
The solute transport in the fractured rock is dominated by a single fracture. geometric characteristics of rough-walled fractures considerably influence their behavior. According to self-affinity rough fractures, fractal model established based on fractional Brownian motion and successive random accumulation method. Navier–Stokes equation convective-dispersion are employed analyze effect dimension standard deviation aperture characteristics. results show that concentration front streamline...
Scaled physical modeling is an important means to understand the behavior of fluids in nature. However, a common source errors conflicting similarity criteria. Here, we present using hypergravity improve scaling gravity-dominated fluid convection, e.g. natural convection and multi-phase flow. We demonstrate validity approach by investigating water-brine buoyant jet experiments conducted under created centrifuge. Results show that increases with gravitational acceleration. In particular,...